Spring bed-bottom.



. PATENTED MAY 23, 1905. S. 1. BRIDGEWATER. SPRING BED BOTTOM.APPLIUATION Pimp JULY 18, 1904.

UNITED STATES Patented May 23, 1905;

PATENT OFFICE.

SPRING BED-BOTTOM- SPECIFICATION forming part of Letters Patent No.790,614, dated May 23, 1905. Application filed July 18, 1904. Serial No-216,948.

To all iuhom it may concern: I

Be it known that I, SAMUEL I. BRIDGEWA- 'TER, a citizen of the UnitedStates, residing ence being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to improvements in spring bed-bottoms of the typethatare composed of marginal frames, open-mesh wovenwire fabriccomprising tie-wires attached to the frames, and helically-coiledsprings connected at their ends to the tie-wires, the invention havingparticular reference tothe tiewires and the arrangement of the springsrelatively thereto.

The objects of the invention are to provide spring bed-bottomconstruction in which the minimum number of the most simple andinexpensive forms of tie-wires will be required, so as to reduce thecost of manufacture thereof tothe minimum, and which may be durable andeconomical in use.

With the above-mentioned and other minor objects in view the inventionconsists inthe novel forms and arrangement of the tie-wires and thearrangement of the springs with respect to the tie-wires, as hereinafterparticularly described, and pointed out in the claims.

Referring to the drawings, Figure 1 is a fragmentary perspective vlewillustrating the invention; Fig. 2, a fragmentary vertical sectionalView at the plane of tie-wire B in Fig. 1, the tie-wire being shown inside elevation; and Fig. 3 is a fragmentary vertical sectional view atthe plane of the tie-wire Cin Fig. 1,

tudinal wires, as B and B, being disposed at right angles to thetransverse wires, as C C C C these particular wires being attached tothe frame A. Similar wires, as B B and C C (1 C, are attached to theframe A. The two frames and the two sets of tie-wires are alike and thesprings, as D D D D are connected at their ends to the two-sets oftiewires. The tie-wires are all formed straight except at the points ofintersecting, or where the longitudinal wires cross the transversewires, and at their end portions, so that the bodies of the wires areeasily formed. A description of the wires that are attached to the frameA will be understood as also referring to the wires that are attached tothe frame A.

Each tie-wire,as B, has a suitable number of upturned bends, as a Z) 0cl, somewhat resembling open loops, so formed of the wires that theparts of the wires between the several bends or loops remain inalinement. bends are arranged as pairs, the two bends of The each pairbeing of suitable distance apart to engage the inner and under sides ofthe end coils of the springs at opposite sides of the coils, on the lineof diameter thereof, the bodies of the wires being in the plane at theunder sides of the coils, and the centers of the bends extendingapproximately to the tops of the end coils, so that a pair of bendsprevent lateral movemnnts of the end of the spring along the axis of thewire when locked by the transversely-disposed wires.

Each tie-wire, as C, has a suitable number of downturned bends, as e f,each bend in itself being identically like the bends, as a, in thewires, such as B, except that they are disposed downwardly. There aretwice as many wires like (1 as there are like B,and such wires, as B,have twice as many bends as have such wires asC.

The two parts g and g of the end coils of the springs extend over thebodies of the wires,

as B, close to the bends a and Z) and under the bodies of the wires, asC and C, the end portions It of the coils extending also under the wirescorresponding to the wires C or G and each end portion has a hook 7t atits end engaging a Wire corresponding to the wireB or C The two hooks hh of a spring are'preferably formed at opposite sides of the axis of thespring, as shown, and the springs are preferably arranged, as shown,with the heel: of one spring near the wire and the hook of the adjacentspring near the wire C so that the tendency of the springs to lean whencompressed would be counteracted by other springs. It will be seen,therefore, that the bodies of all of the wires, as B, lie in a plane atthe under side of the end coil of the spring and that the bodies of thewires, as C, lie in a plane at the opposite or upper side of the coil 4or against the ends of the springs, the longitudinal and transversewires being crossed at the inner portions of their bends close to theinner sides of the coils, thus securely holding the springs in thedesired positions with respect to each other and to the marginal frames.In some cases the wires have slight bends, as i, Fig. 2, near theirconnections with the frames.

In practical use mattresses may be supported on the springs andtie-wires, and the latter being in nearly the same planes as the ends ofthe springs will present even or substantially plane faces, so as toprevent undue and uneven sagging of the mattresses. Also there may besuitable filling placed about the springs and the whole upholstered asspring-cushions without requiring separate mattresses to be used on thesprings.

Having thus described the invention, what I claim as new is 1.Abed-bottom comprisinghelically-coiled springs, marginal frames,longitudinal tiewires each having pairs of loops the outer oppositesides of which engage the inner sides of the end coils of the springs atthe planes of greatest dimension thereof, the wires extending under thecoils and the loops being all bent outwardly in the same direction, eachcoil being engaged by a pair of the loops, and transverse tie-wires eachhaving single loops at the end coils of the springs, there being asingle loop engaging a loop of a longitudinal wire at the inner sidethereof, the transverse wires extending against the outer sides of thecoils, all of said wires being straight between the loops thereof andconnected to the marginal frames, substantially as set forth.

2. In a bed-bottom, the combination with the end coil or ring ofahelically-coiled spring, of a tie-wire having a straight body portionextending under the coil or ring and having a pair of loops bentoutwardly againstthe inner sides of the coil or ring at the plane ofgreatest diameter thereof, and a pair of tiewires having each a straightbody portion extending against the outer side of the coil or ring andhaving also a loop the inner side of which engages the inner side of. aloop of the first-described tie-wire, substantially as set forth.

In testimony whereof I afiix my signature in presence of two witnesses.

SAMUEL I. BRIDGEWA'IER.

Witnesses:

RALPH I-I. SrAUoIr, FRANK MoN EAL.

